Annelida
Annelida, (a Generally Adopted, But Barbarous Latinization Of The French Term Annelides,' From Annellus,' A Little Ring ; Ought Rather To Be Written Annulata 'or An Nellata!)—the Natural Group Of Annelida Comprehends All The Invertebrated Animals Which Have A Soft Body Divided Into Transverse Segments Or Rings ; A Distinct ...
Anterior
Anterior Branches.-ist. The Superior Thyroid Artery (a. Thyroidea Superior ) Gene Rally Arises Opposite The Comu Of The Os Hyoides A Few Lines Above The Bifurcation Of The Primi Tive Carotid ; In Some Rare Cases It Comes From The Trunk Of The Primitive Carotid : It Has Been Also ...
Antero Posterior
Antero-posterior Symmetry.— By Re Ference To The Diagram At Page 824. Vol. Ill. Fig. 433., Representing The Abstract Notion Or Type Of A Vertebral Segment, It Will Be Seen That The Upper Or Posterior Half Is A Reverse Of The Lower Or Anterior. Referring To What Really Exists In Nature, ...
Aorta
Aorta* (human Anatomy). — (arteria Magna. Fr. Aorte. Germ. Aorta, Die Grosse Schlagader. Gr. Cocri.) Hippocrates Applied The Term Ocogtocc To The Lower Part Of The Bronchi. Aristotle Called The Great Trunk Of The Arterial System The Aorta, One Of The Two Great Arteries Which Spring From The Heart, Is ...
Appendix
Appendix. - On The Relations Which Exist Between The Aninual And Vegetable Kingdoms, As Regards The Function Of Reproduction. In The Introduction To The Foregoing Article, It Was Observed That, If Any Analogies In Deve Lopment May Be Supposed To Exist Between Plants And Animals, They Are To Be Sought ...
Arachnida
Arachnida; Oteavv, Aranea ; Eng. Arachnidans ; Fr. Arachnides ; Germ. Spinne ; Ital. Ragni. This Class Of Animals Was For A Long Time Confounded With That Of Insects, But It Has Been Distinguished Therefrom By Many Modern Natu Ralists, And More Especially By Lamarck, Who Has Applied To It ...
Arteria Innominata
Arteria Innominata, (in Human Anatomy) Fr. 'front Brachio-cephalique. The Innominata Or Brachio-cephalic Artery Is Situated To The Anterior And Right Side Of The Thorax, Extending From The Arch Of The Aorta To The Sterno-clavieular Articulation. Of The Three Large Vessels Proceeding From The Arch Of The Aorta, The Innominata Is ...
Artery
Artery, (normal Anatomy): Acrveta, Airo Too Toy Ocega Tvgetv, Ab Aere Servando. Tr. Ar Tery. Germ. Pulsader,schlagader. Ital. Arteria. The Arteries Are The Vessels Which Carry The Blood From The Heart, And Distribute That Fluid Throughout The Body. The Trachea Was Ori Ginally Called Artery From The Circumstance Of Its ...
Articulata
Articulata (articulus, A Joint,) A Pri Mary Division Of The Animal Kingdom Founded By Cuvier,* And Characterized By Him As Follows : " Body Jointed Externally, Corresponding To The Divisions Of The Nervous System Internally : A Very Small Brain Placed Above The Oesophagus Gives Off Two Filaments Which Extend ...
Articulation
Articulation (in Anatomy), Synony ,mous With Joint. (gr. Apepoy. Lat. Articulus, Arthrosis, Junctura. Fr. Articulation. Germ. Articulation, Gelenk. Ital. Articolo). The Power Of Motion, To An Extent However Limited, Seems To Be Inseparable From Our Idea Of An Animal, And In Looking Through The Animal Series We Find None Which ...
Asphyxia
Asphyxia. (gr. Acrptica. Fr. Asphixie. Ger. Scheintod, Asphyxie. Ital. Asfssia.) The Word Asphyxia, According To Its Derivation (from A And Ovvb.), Pulsus,) Ought To Signify What Is Usually Expressed By The Term Syncope, I. E. Failure Of The Heart's Action ; But It Is Now Always Used To Express Failure ...
Aulozoa
Aulozoa. - The Third Subdivision Of Po Lypifera Is Composed Of A Series Of Zoo Phy Tes Very Different In Their Org,anisation From Those Embraced By The Two Preceding. They Have Generally Been Named By Natu Ralists Tubular Or Vaginated Polypes, And Are Distinguishable From The Circumstance That Their Living ...
As Related To The
Of Tiie Ovum In General, As Related To The Sexual Process Of Generation. The Term Ovum Is In This Article Entirely Restricted To The Product Of Sexual Genera Tion. This Body Is Formed In The Ovary Of The Female Parent (or In The Female Organ Of A Hermaphrodite Parent) By ...